[185] Delbrück, op. cit., pt. ii, p. 90.

[186] Koepp, Die Römer in Deutschland, p. 76.

[187] Brünnow-Domaszewski, Die Provincia Arabia, vol. iii, p. 221.

[188] Stolle, Das Lager und Heer der Römer, pp. 52 et seq., 105 et seq.

[189] Boṣrâ in eastern Syria, Brünnow-Domaszewski, op. cit., vol. iii, p. 2; Shuhbâ in the Ḥaurân, idem, iii, p. 146, and Butler, Architecture and other Arts, p. 393; Apamea in northern Syria, Butler, idem, p. 54.

[190] The material for their study is ample: Der obergermanisch-rätische Limes des Römerreiches, published by the Reichs-Limeskommission; Der römische Limes in Oesterreich, published by the K. Akad. der Wissenschaften; the great camp at Novaesium published in the Bonner Jahrbuch, 1904; for the Saalburg see Jacobi, Führer durch das Römerkastell Saalburg. For Africa, Ballu, Les Ruines de Timgad; Gsell, Monuments antiques de l’Algérie; Cagnat, Les Deux Camps de Lambèse. For Britain, Bruce, The Roman Wall; Curle, A Roman Frontier Fort. Lyell, A Bibliographical List of Romano-British Architectural Remains, gives reference to others.

[191] Der oberger.-rät. Limes, No. 66, Aalen, No. 65, Unterböbingen.

[192] Der oberger.-rät. Limes, No. 31.

[193] Cagnat, Les Deux Camps de Lambèse, p. 19, Fig. 2.

[194] Der oberger.-rät. Limes, No. 8, Zugmantel.